Vale Weather Records (USC00398552)

Record envelope, standing records and threshold days for Vale (USC00398552), South Dakota, United States, with 71 years of record.

Key Facts for Vale

Vale (USC00398552) is a weather station in South Dakota, United States at 44.62 latitude and -103.40 longitude, 845 m (2,772 ft) above sea level.
The station reports from 1908 to 1978, 71 years of record.
1,464 records set at Vale still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Vale set a daily record low maximum temperature of 16.7 C (62.1 F) on 21 July 1978.

About the Station

Location: South Dakota, United States, 44.62 latitude, -103.40 longitude.
Elevation: 845 m (2,772 ft).
Period of record: 1908 to 1978, 71 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Vale. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Vale, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	19.4 C (66.9 F)	-39.4 C (-38.9 F)	n/a	n/a
Feb	23.9 C (75.0 F)	-37.8 C (-36.0 F)	n/a	n/a
Mar	31.1 C (88.0 F)	-32.2 C (-26.0 F)	n/a	n/a
Apr	33.3 C (91.9 F)	-25.0 C (-13.0 F)	n/a	n/a
May	38.9 C (102.0 F)	-11.1 C (12.0 F)	n/a	n/a
Jun	42.8 C (109.0 F)	-3.3 C (26.1 F)	n/a	n/a
Jul	45.0 C (113.0 F)	2.2 C (36.0 F)	n/a	n/a
Aug	43.3 C (109.9 F)	1.1 C (34.0 F)	n/a	n/a
Sep	40.0 C (104.0 F)	-13.3 C (8.1 F)	n/a	n/a
Oct	34.4 C (93.9 F)	-23.3 C (-9.9 F)	n/a	n/a
Nov	29.4 C (84.9 F)	-31.7 C (-25.1 F)	n/a	n/a
Dec	24.4 C (75.9 F)	-36.7 C (-34.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Vale still stand. 1936 holds the most, with 75.

Standing records at Vale by the year they were set
Year set	Standing records
1908	18
1909	14
1910	38
1911	34
1912	23
1913	25
1914	25
1915	22
1916	37
1917	28
1918	37
1919	42
1920	16
1921	29
1922	19
1923	16
1924	22
1925	27
1926	20
1927	20
1928	12
1929	21
1930	15
1931	36
1932	24
1933	37
1934	47
1935	31
1936	75
1937	29
1938	13
1939	28
1940	18
1941	14
1942	16
1943	27
1944	15
1945	13
1946	15
1947	18
1948	19
1949	15
1950	26
1951	28
1952	24
1953	12
1954	18
1955	16
1956	12
1957	14
1958	11
1959	19
1960	17
1961	8
1962	21
1963	15
1964	8
1965	23
1966	18
1967	10
1968	14
1969	14
1970	6
1971	9
1972	22
1973	8
1974	12
1975	1
1976	10
1977	15
1978	3

Wettest Day of Each Month

Jul: 139.7 mm (5.5 in)

The wettest day on record for each calendar month at Vale. The most was 139.7 mm (5.5 in) on 12 July 1937.

Record daily precipitation for each month at Vale
Month	Record daily precipitation (mm)	Date
Jan	19.6 mm (0.8 in)	27 January 1944
Feb	17.8 mm (0.7 in)	9 February 1953
Mar	45.0 mm (1.8 in)	29 March 1977
Apr	63.5 mm (2.5 in)	30 April 1967
May	138.4 mm (5.4 in)	23 May 1933
Jun	94.0 mm (3.7 in)	8 June 1964
Jul	139.7 mm (5.5 in)	12 July 1937
Aug	91.4 mm (3.6 in)	23 August 1973
Sep	122.2 mm (4.8 in)	28 September 1923
Oct	79.2 mm (3.1 in)	8 October 1924
Nov	25.4 mm (1.0 in)	9 November 1922
Dec	15.2 mm (0.6 in)	17 December 1908

Period of Record Coverage

1908 to 1978

71 years of record at Vale, 1908 to 1978. 6 years have data for under 90 percent of days and are left out of rankings: 1908, 1909, 1910, 1918, 1963, 1978.

Days with data per year at Vale
Year	Days with data	Share of year	Complete
1908	243	66%	No
1909	289	79%	No
1910	327	90%	No
1911	351	96%	Yes
1912	362	99%	Yes
1913	361	99%	Yes
1914	364	100%	Yes
1915	361	99%	Yes
1916	362	99%	Yes
1917	357	98%	Yes
1918	328	90%	No
1919	353	97%	Yes
1920	357	98%	Yes
1921	360	99%	Yes
1922	354	97%	Yes
1923	362	99%	Yes
1924	364	99%	Yes
1925	357	98%	Yes
1926	358	98%	Yes
1927	359	98%	Yes
1928	365	100%	Yes
1929	351	96%	Yes
1930	364	100%	Yes
1931	365	100%	Yes
1932	366	100%	Yes
1933	363	99%	Yes
1934	364	100%	Yes
1935	365	100%	Yes
1936	366	100%	Yes
1937	364	100%	Yes
1938	365	100%	Yes
1939	363	99%	Yes
1940	363	99%	Yes
1941	364	100%	Yes
1942	365	100%	Yes
1943	346	95%	Yes
1944	358	98%	Yes
1945	364	100%	Yes
1946	364	100%	Yes
1947	358	98%	Yes
1948	366	100%	Yes
1949	363	99%	Yes
1950	364	100%	Yes
1951	360	99%	Yes
1952	365	100%	Yes
1953	355	97%	Yes
1954	365	100%	Yes
1955	348	95%	Yes
1956	366	100%	Yes
1957	334	92%	Yes
1958	365	100%	Yes
1959	365	100%	Yes
1960	365	100%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	304	83%	No
1964	362	99%	Yes
1965	362	99%	Yes
1966	361	99%	Yes
1967	358	98%	Yes
1968	357	98%	Yes
1969	359	98%	Yes
1970	353	97%	Yes
1971	355	97%	Yes
1972	358	98%	Yes
1973	357	98%	Yes
1974	360	99%	Yes
1975	360	99%	Yes
1976	356	97%	Yes
1977	364	100%	Yes
1978	181	50%	No

Latest Records

Latest records at Vale
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 July 1978	Vale, US	daily low max	16.7 C (62.1 F)	5.0 C (9.0 F)	5 years	19 of 100 (Routine)
5 April 1978	Vale, US	daily high min	8.3 C (46.9 F)	0.5 C (0.9 F)	52 years	23 of 100 (Routine)
22 February 1978	Vale, US	daily high min (Tie)	0.6 C (33.1 F)	tie	48 years	5 of 100 (Routine)
19 February 1978	Vale, US	daily snow depth	22.9 cm (9.0 in)	2.6 cm (1.0 in)	19 years	16 of 100 (Routine)
18 February 1978	Vale, US	daily snow depth	30.5 cm (12.0 in)	10.2 cm (4.0 in)	19 years	28 of 100 (Routine)
17 February 1978	Vale, US	daily snow depth	35.6 cm (14.0 in)	17.8 cm (7.0 in)	28 years	44 of 100 (Notable)
17 February 1978	Vale, US	daily low min	-32.8 C (-27.0 F)	1.1 C (2.0 F)	68 years	28 of 100 (Routine)
16 February 1978	Vale, US	daily snow depth	40.6 cm (16.0 in)	15.2 cm (6.0 in)	42 years	43 of 100 (Notable)
15 February 1978	Vale, US	daily snow depth	40.6 cm (16.0 in)	25.4 cm (10.0 in)	12 years	50 of 100 (Notable)
14 February 1978	Vale, US	monthly snow depth (Tie)	43.2 cm (17.0 in)	tie	0 years	4 of 100 (Routine)
13 February 1978	Vale, US	monthly snow depth (Tie)	43.2 cm (17.0 in)	tie	0 years	4 of 100 (Routine)
12 February 1978	Vale, US	daily snowfall	12.7 cm (5.0 in)	7.6 cm (3.0 in)	4 years	31 of 100 (Routine)
12 February 1978	Vale, US	daily rain	6.6 mm (0.26 in)	2.5 mm (0.10 in)	48 years	20 of 100 (Routine)
12 February 1978	Vale, US	monthly snow depth	43.2 cm (17.0 in)	2.6 cm (1.0 in)	7 years	23 of 100 (Routine)
11 February 1978	Vale, US	daily rain	5.1 mm (0.20 in)	2.1 mm (0.08 in)	46 years	20 of 100 (Routine)
11 February 1978	Vale, US	daily snowfall	7.6 cm (3.0 in)	2.5 cm (1.0 in)	46 years	27 of 100 (Routine)
11 February 1978	Vale, US	daily snow depth	30.5 cm (12.0 in)	7.6 cm (3.0 in)	28 years	27 of 100 (Routine)
10 February 1978	Vale, US	daily snow depth	22.9 cm (9.0 in)	7.7 cm (3.0 in)	24 years	26 of 100 (Routine)
22 January 1978	Vale, US	daily snow depth (Tie)	15.2 cm (6.0 in)	tie	42 years	4 of 100 (Routine)
21 January 1978	Vale, US	daily snow depth	17.8 cm (7.0 in)	5.1 cm (2.0 in)	7 years	18 of 100 (Routine)

Climate Trend

60 complete years, 1911 to 1977

One stripe for each of 60 complete years at Vale, 1911 to 1977. Blue stripes are years cooler than the station's own mean of 7.7 C (45.8 F); red stripes are warmer. The coolest year was 1917, at 5.9 C (42.6 F), and the warmest was 1934, at 9.9 C (49.7 F). The strongest colour marks a difference of 2.2 C (4.0 F).

Annual mean temperature at Vale as warming stripes, 1911 to 1977
Year	Annual mean temperature	Difference from the station mean
1911	8.2 C	+0.47 C
1912	7.4 C	-0.31 C
1913	7.7 C	-0.03 C
1914	8.7 C	+0.97 C
1915	6.9 C	-0.77 C
1916	5.9 C	-1.78 C
1917	5.9 C	-1.81 C
1919	6.8 C	-0.92 C
1920	7.1 C	-0.55 C
1921	8.4 C	+0.74 C
1922	6.3 C	-1.36 C
1923	7.8 C	+0.11 C
1924	6.4 C	-1.29 C
1925	7.8 C	+0.08 C
1926	8.1 C	+0.40 C
1927	6.2 C	-1.52 C
1928	8.0 C	+0.32 C
1929	6.6 C	-1.06 C
1930	8.2 C	+0.47 C
1932	7.8 C	+0.09 C
1933	9.1 C	+1.45 C
1934	9.9 C	+2.18 C
1935	8.4 C	+0.71 C
1936	8.2 C	+0.50 C
1937	7.5 C	-0.14 C
1938	8.6 C	+0.95 C
1939	9.0 C	+1.32 C
1940	8.3 C	+0.57 C
1941	9.0 C	+1.27 C
1942	8.5 C	+0.82 C
1944	7.5 C	-0.19 C
1945	7.5 C	-0.19 C
1946	8.7 C	+1.04 C
1947	8.1 C	+0.43 C
1948	7.9 C	+0.20 C
1949	7.3 C	-0.36 C
1950	5.9 C	-1.80 C
1951	6.3 C	-1.39 C
1953	8.4 C	+0.75 C
1954	7.5 C	-0.22 C
1956	7.1 C	-0.61 C
1958	7.9 C	+0.24 C
1959	7.1 C	-0.63 C
1960	7.6 C	-0.11 C
1961	8.4 C	+0.76 C
1962	8.0 C	+0.36 C
1964	7.7 C	+0.06 C
1965	7.1 C	-0.54 C
1966	6.9 C	-0.78 C
1967	8.0 C	+0.27 C
1968	7.6 C	-0.04 C
1969	7.7 C	-0.01 C
1970	7.3 C	-0.38 C
1971	7.3 C	-0.38 C
1972	6.9 C	-0.79 C
1973	8.1 C	+0.41 C
1974	8.6 C	+0.95 C
1975	7.1 C	-0.55 C
1976	8.6 C	+0.95 C
1977	8.2 C	+0.53 C

The fitted trend in annual mean temperature here over 1911 to 1977 is 0.05 C (-0.07 to 0.16) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.3) per decade. The slope is a straight line fitted to 60 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Vale
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.05 C (-0.07 to 0.16) per decade	0.1 F (-0.1 to 0.3) per decade	1911 to 1977	60	Not clearly different from zero
Mean daily maximum	0.1 C (-0.1 to 0.2) per decade	0.1 F (-0.1 to 0.4) per decade	1911 to 1977	60	Not clearly different from zero
Mean daily minimum	0.02 C (-0.09 to 0.14) per decade	0.04 F (-0.15 to 0.24) per decade	1911 to 1977	60	Not clearly different from zero

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1908 to 1978

Yearly extremes at Vale: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	45.0 C (113.0 F)	1936	38.9 C (102.0 F)	71
Coldest night (TNn)	-39.4 C (-38.9 F)	1927	-32.2 C (-26.0 F)	71
Wettest day (Rx1day)	139.7 mm (5.5 in)	1937	43.2 mm (1.7 in)	71
Wettest five days (Rx5day)	207.5 mm (8.2 in)	1937	61.7 mm (2.4 in)	71
Longest dry spell (CDD)	99 days	1952	35 days	71

Hottest day (TXx)

The hottest day of the year at Vale, 1908 to 1978. The record is 45.0 C (113.0 F) in 1936, marked on the chart; the median year is 38.9 C (102.0 F).

Hottest day (TXx) at Vale by year
Year	Hottest day (TXx)
1908	40.0 C (104.0 F)
1909	39.4 C (102.9 F)
1910	41.7 C (107.1 F)
1911	40.0 C (104.0 F)
1912	36.7 C (98.1 F)
1913	38.9 C (102.0 F)
1914	40.6 C (105.1 F)
1915	38.3 C (100.9 F)
1916	38.3 C (100.9 F)
1917	43.3 C (109.9 F)
1918	38.9 C (102.0 F)
1919	38.3 C (100.9 F)
1920	37.2 C (99.0 F)
1921	40.6 C (105.1 F)
1922	36.7 C (98.1 F)
1923	36.7 C (98.1 F)
1924	37.2 C (99.0 F)
1925	38.3 C (100.9 F)
1926	40.0 C (104.0 F)
1927	34.4 C (93.9 F)
1928	36.7 C (98.1 F)
1929	39.4 C (102.9 F)
1930	40.6 C (105.1 F)
1931	42.8 C (109.0 F)
1932	38.9 C (102.0 F)
1933	41.7 C (107.1 F)
1934	40.6 C (105.1 F)
1935	43.3 C (109.9 F)
1936	45.0 C (113.0 F)
1937	42.8 C (109.0 F)
1938	38.9 C (102.0 F)
1939	40.0 C (104.0 F)
1940	38.3 C (100.9 F)
1941	40.0 C (104.0 F)
1942	36.7 C (98.1 F)
1943	40.6 C (105.1 F)
1944	37.8 C (100.0 F)
1945	37.2 C (99.0 F)
1946	37.2 C (99.0 F)
1947	40.0 C (104.0 F)
1948	40.0 C (104.0 F)
1949	40.0 C (104.0 F)
1950	36.7 C (98.1 F)
1951	40.6 C (105.1 F)
1952	41.1 C (106.0 F)
1953	36.1 C (97.0 F)
1954	40.6 C (105.1 F)
1955	38.3 C (100.9 F)
1956	37.2 C (99.0 F)
1957	38.9 C (102.0 F)
1958	39.4 C (102.9 F)
1959	37.8 C (100.0 F)
1960	40.6 C (105.1 F)
1961	39.4 C (102.9 F)
1962	36.7 C (98.1 F)
1963	37.2 C (99.0 F)
1964	38.9 C (102.0 F)
1965	36.7 C (98.1 F)
1966	41.1 C (106.0 F)
1967	35.6 C (96.1 F)
1968	36.7 C (98.1 F)
1969	38.9 C (102.0 F)
1970	39.4 C (102.9 F)
1971	37.2 C (99.0 F)
1972	35.0 C (95.0 F)
1973	41.1 C (106.0 F)
1974	38.3 C (100.9 F)
1975	39.4 C (102.9 F)
1976	37.8 C (100.0 F)
1977	39.4 C (102.9 F)
1978	36.7 C (98.1 F)

Coldest night (TNn)

The coldest night of the year at Vale, 1908 to 1978. The record is -39.4 C (-38.9 F) in 1927, marked on the chart; the median year is -32.2 C (-26.0 F).

Coldest night (TNn) at Vale by year
Year	Coldest night (TNn)
1908	-27.2 C (-17.0 F)
1909	-30.0 C (-22.0 F)
1910	-31.7 C (-25.1 F)
1911	-33.3 C (-27.9 F)
1912	-36.1 C (-33.0 F)
1913	-38.3 C (-36.9 F)
1914	-35.0 C (-31.0 F)
1915	-32.2 C (-26.0 F)
1916	-38.9 C (-38.0 F)
1917	-35.6 C (-32.1 F)
1918	-37.2 C (-35.0 F)
1919	-33.3 C (-27.9 F)
1920	-31.1 C (-24.0 F)
1921	-27.2 C (-17.0 F)
1922	-35.0 C (-31.0 F)
1923	-29.4 C (-20.9 F)
1924	-36.7 C (-34.1 F)
1925	-36.1 C (-33.0 F)
1926	-30.0 C (-22.0 F)
1927	-39.4 C (-38.9 F)
1928	-33.3 C (-27.9 F)
1929	-36.7 C (-34.1 F)
1930	-30.6 C (-23.1 F)
1931	-21.1 C (-6.0 F)
1932	-33.9 C (-29.0 F)
1933	-33.9 C (-29.0 F)
1934	-33.9 C (-29.0 F)
1935	-32.2 C (-26.0 F)
1936	-37.8 C (-36.0 F)
1937	-32.2 C (-26.0 F)
1938	-29.4 C (-20.9 F)
1939	-30.0 C (-22.0 F)
1940	-28.9 C (-20.0 F)
1941	-24.4 C (-11.9 F)
1942	-33.3 C (-27.9 F)
1943	-34.4 C (-29.9 F)
1944	-32.8 C (-27.0 F)
1945	-29.4 C (-20.9 F)
1946	-29.4 C (-20.9 F)
1947	-30.6 C (-23.1 F)
1948	-30.0 C (-22.0 F)
1949	-37.8 C (-36.0 F)
1950	-35.0 C (-31.0 F)
1951	-32.8 C (-27.0 F)
1952	-32.2 C (-26.0 F)
1953	-25.6 C (-14.1 F)
1954	-32.2 C (-26.0 F)
1955	-28.9 C (-20.0 F)
1956	-32.8 C (-27.0 F)
1957	-34.4 C (-29.9 F)
1958	-29.4 C (-20.9 F)
1959	-31.7 C (-25.1 F)
1960	-30.6 C (-23.1 F)
1961	-27.2 C (-17.0 F)
1962	-30.6 C (-23.1 F)
1963	-37.8 C (-36.0 F)
1964	-30.6 C (-23.1 F)
1965	-30.6 C (-23.1 F)
1966	-34.4 C (-29.9 F)
1967	-30.6 C (-23.1 F)
1968	-33.9 C (-29.0 F)
1969	-28.9 C (-20.0 F)
1970	-31.7 C (-25.1 F)
1971	-31.7 C (-25.1 F)
1972	-37.2 C (-35.0 F)
1973	-31.1 C (-24.0 F)
1974	-32.2 C (-26.0 F)
1975	-33.9 C (-29.0 F)
1976	-33.9 C (-29.0 F)
1977	-30.0 C (-22.0 F)
1978	-32.8 C (-27.0 F)

Wettest day (Rx1day)

The wettest day of the year at Vale, 1908 to 1978. The record is 139.7 mm (5.5 in) in 1937, marked on the chart; the median year is 43.2 mm (1.7 in).

Wettest day (Rx1day) at Vale by year
Year	Wettest day (Rx1day)
1908	46.2 mm (1.8 in)
1909	89.4 mm (3.5 in)
1910	46.5 mm (1.8 in)
1911	22.9 mm (0.9 in)
1912	48.8 mm (1.9 in)
1913	61.5 mm (2.4 in)
1914	31.8 mm (1.3 in)
1915	57.2 mm (2.3 in)
1916	31.8 mm (1.3 in)
1917	31.2 mm (1.2 in)
1918	24.1 mm (0.9 in)
1919	78.0 mm (3.1 in)
1920	102.4 mm (4.0 in)
1921	23.4 mm (0.9 in)
1922	39.4 mm (1.6 in)
1923	122.2 mm (4.8 in)
1924	79.2 mm (3.1 in)
1925	33.8 mm (1.3 in)
1926	47.2 mm (1.9 in)
1927	67.3 mm (2.6 in)
1928	44.5 mm (1.8 in)
1929	49.3 mm (1.9 in)
1930	48.3 mm (1.9 in)
1931	21.6 mm (0.9 in)
1932	36.8 mm (1.4 in)
1933	138.4 mm (5.4 in)
1934	50.8 mm (2.0 in)
1935	47.5 mm (1.9 in)
1936	44.5 mm (1.8 in)
1937	139.7 mm (5.5 in)
1938	26.4 mm (1.0 in)
1939	17.8 mm (0.7 in)
1940	34.8 mm (1.4 in)
1941	64.5 mm (2.5 in)
1942	82.8 mm (3.3 in)
1943	24.1 mm (0.9 in)
1944	56.1 mm (2.2 in)
1945	34.5 mm (1.4 in)
1946	60.7 mm (2.4 in)
1947	55.1 mm (2.2 in)
1948	36.6 mm (1.4 in)
1949	47.2 mm (1.9 in)
1950	27.2 mm (1.1 in)
1951	34.3 mm (1.4 in)
1952	39.4 mm (1.6 in)
1953	36.8 mm (1.4 in)
1954	43.2 mm (1.7 in)
1955	43.9 mm (1.7 in)
1956	33.0 mm (1.3 in)
1957	33.0 mm (1.3 in)
1958	31.8 mm (1.3 in)
1959	20.1 mm (0.8 in)
1960	36.1 mm (1.4 in)
1961	33.8 mm (1.3 in)
1962	40.4 mm (1.6 in)
1963	38.6 mm (1.5 in)
1964	94.0 mm (3.7 in)
1965	48.3 mm (1.9 in)
1966	33.8 mm (1.3 in)
1967	63.5 mm (2.5 in)
1968	58.4 mm (2.3 in)
1969	35.6 mm (1.4 in)
1970	41.9 mm (1.6 in)
1971	42.2 mm (1.7 in)
1972	43.9 mm (1.7 in)
1973	91.4 mm (3.6 in)
1974	38.6 mm (1.5 in)
1975	33.0 mm (1.3 in)
1976	59.4 mm (2.3 in)
1977	46.0 mm (1.8 in)
1978	31.5 mm (1.2 in)

Wettest five days (Rx5day)

The wettest five days of the year at Vale, 1908 to 1978. The record is 207.5 mm (8.2 in) in 1937, marked on the chart; the median year is 61.7 mm (2.4 in).

Wettest five days (Rx5day) at Vale by year
Year	Wettest five days (Rx5day)
1908	61.6 mm (2.4 in)
1909	126.1 mm (5.0 in)
1910	63.0 mm (2.5 in)
1911	22.9 mm (0.9 in)
1912	72.2 mm (2.8 in)
1913	72.2 mm (2.8 in)
1914	54.9 mm (2.2 in)
1915	100.6 mm (4.0 in)
1916	64.8 mm (2.6 in)
1917	62.2 mm (2.4 in)
1918	41.2 mm (1.6 in)
1919	83.5 mm (3.3 in)
1920	162.6 mm (6.4 in)
1921	47.3 mm (1.9 in)
1922	60.5 mm (2.4 in)
1923	132.4 mm (5.2 in)
1924	115.5 mm (4.5 in)
1925	36.8 mm (1.4 in)
1926	76.4 mm (3.0 in)
1927	124.8 mm (4.9 in)
1928	52.1 mm (2.1 in)
1929	78.5 mm (3.1 in)
1930	81.3 mm (3.2 in)
1931	22.4 mm (0.9 in)
1932	60.4 mm (2.4 in)
1933	154.9 mm (6.1 in)
1934	61.7 mm (2.4 in)
1935	74.2 mm (2.9 in)
1936	51.4 mm (2.0 in)
1937	207.5 mm (8.2 in)
1938	35.2 mm (1.4 in)
1939	31.8 mm (1.3 in)
1940	48.0 mm (1.9 in)
1941	138.5 mm (5.5 in)
1942	88.1 mm (3.5 in)
1943	55.5 mm (2.2 in)
1944	83.0 mm (3.3 in)
1945	51.5 mm (2.0 in)
1946	81.1 mm (3.2 in)
1947	102.1 mm (4.0 in)
1948	58.5 mm (2.3 in)
1949	61.7 mm (2.4 in)
1950	33.8 mm (1.3 in)
1951	53.9 mm (2.1 in)
1952	67.1 mm (2.6 in)
1953	58.4 mm (2.3 in)
1954	49.6 mm (2.0 in)
1955	61.2 mm (2.4 in)
1956	35.5 mm (1.4 in)
1957	71.1 mm (2.8 in)
1958	40.4 mm (1.6 in)
1959	39.7 mm (1.6 in)
1960	42.9 mm (1.7 in)
1961	48.2 mm (1.9 in)
1962	103.1 mm (4.1 in)
1963	49.8 mm (2.0 in)
1964	121.7 mm (4.8 in)
1965	85.0 mm (3.3 in)
1966	35.6 mm (1.4 in)
1967	79.2 mm (3.1 in)
1968	73.5 mm (2.9 in)
1969	64.8 mm (2.6 in)
1970	52.3 mm (2.1 in)
1971	61.0 mm (2.4 in)
1972	57.1 mm (2.2 in)
1973	133.6 mm (5.3 in)
1974	54.1 mm (2.1 in)
1975	50.5 mm (2.0 in)
1976	106.9 mm (4.2 in)
1977	81.1 mm (3.2 in)
1978	51.8 mm (2.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Vale, 1908 to 1978. The record is 99 days in 1952, marked on the chart; the median year is 35 days.

Longest dry spell (CDD) at Vale by year
Year	Longest dry spell (CDD)
1908	25 days
1909	32 days
1910	39 days
1911	32 days
1912	27 days
1913	67 days
1914	35 days
1915	39 days
1916	28 days
1917	40 days
1918	22 days
1919	33 days
1920	27 days
1921	53 days
1922	61 days
1923	62 days
1924	18 days
1925	37 days
1926	29 days
1927	25 days
1928	44 days
1929	24 days
1930	36 days
1931	35 days
1932	47 days
1933	38 days
1934	32 days
1935	39 days
1936	55 days
1937	39 days
1938	35 days
1939	45 days
1940	26 days
1941	60 days
1942	24 days
1943	46 days
1944	34 days
1945	36 days
1946	27 days
1947	40 days
1948	32 days
1949	28 days
1950	30 days
1951	36 days
1952	99 days
1953	32 days
1954	49 days
1955	30 days
1956	27 days
1957	36 days
1958	26 days
1959	29 days
1960	37 days
1961	30 days
1962	41 days
1963	28 days
1964	40 days
1965	43 days
1966	24 days
1967	37 days
1968	35 days
1969	39 days
1970	25 days
1971	25 days
1972	23 days
1973	29 days
1974	33 days
1975	39 days
1976	33 days
1977	25 days
1978	41 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

60 years with a frost

Across 60 years with a frost, the median last spring frost at Vale falls on 15 May and the median first autumn frost on 20 September, which leaves a median of 127 days between them.

In 1944 to 1977 the median growing season was 126 days. That is 2 days fewer than in 1911 to 1942.

Fitted over all years, the growing season changes by 0.0 days per decade at this station.

Frost dates and growing season at Vale
Measure	Median, all years	Earliest period (1911 to 1942)	Recent period (1944 to 1977)	Recent against earliest	Fitted trend
Last spring frost	15 May	15 May	18 May	3 days later	-0.6 days per decade
First autumn frost	20 September	20 September	20 September	no change	-0.6 days per decade
Growing days	127 days	128 days	126 days	2 days fewer	0.0 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

67 years, 1909 to 1977

A day with at least 42.5 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 158.8 mm (6.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Vale: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	42.5 mm (1.7 in)
5 years	62.9 mm (2.5 in)
10 years	79.9 mm (3.1 in)
25 years	106.4 mm (4.2 in)
50 years	130.5 mm (5.1 in)
100 years	158.8 mm (6.3 in)	Longer than the 67 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 67 years of values from 1909 to 1977.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 139.7 mm (5.5 in) in 1937; 138.4 mm (5.4 in) in 1933; 122.2 mm (4.8 in) in 1923.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

Data for Vale standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Vale threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).